v2.197-rc2

📜 Recent release history (last 2 versions)

[2.196] - 2026-07-18

Added

• ACME loopback upstream opt-in — a new toggle (Let's Encrypt settings / acme.client.allow_loopback_upstream, default off) allows the ACME client and proxy to reach an upstream CA on a loopback address (a colocated Pebble/step-ca on 127.0.0.1). Cloud-metadata targets remain blocked unconditionally.

Fixed

• Security-key (WebAuthn) login restored — after the per-user credential count was removed from /auth/methods (username-enumeration hardening), the login page stopped offering the security-key option and auto-attempt. The UI no longer depends on that count: it auto-attempts based on the device's saved method and always offers the security-key button when the browser supports it.
• WebAuthn username-enumeration oracle closed — POST /auth/login/webauthn/start returned a challenge only for users with a registered key (200) versus a 401 otherwise, and /verify used distinguishable errors. Both now return identical, well-formed responses for unknown, credential-less, and real users (a deterministic per-username decoy credential), removing the account-existence oracle.
• No default serverAuth EKU on issuing CAs — intermediate CAs created via the API without an explicit extendedKeyUsage were given a serverAuth EKU, which (via EKU chaining) invalidated clientAuth / emailProtection / OCSPSigning leafs issued beneath them, including delegated OCSP responders. Issuing CAs now have no EKU by default; constrain them explicitly via extendedKeyUsage.
• ACME proxy serves the preferred certificate chain — the per-account preferred chain was computed and stored but the upstream default chain was returned to the client; the selected chain is now the one delivered.
• ACME proxy order ownership binding — new-order and finalize now bind an order to the account resolved from the request kid, so a different account can no longer finalize someone else's order. The previous binding only took effect for JWK-signed requests, which RFC 8555 new-order/finalize never are.
• ACME DNS-01 self-check is advisory — a local resolver that cannot see the challenge TXT record (split-horizon or filtered egress DNS) no longer aborts renewal or proxy issuance before the challenge is submitted; the CA remains the authority. Set the propagation timeout to 0 to skip the pre-check entirely.
• SAN URI validation — the issuance/CSR forms now accept authority-less URIs (urn:, mailto:, did:), matching what the API already allowed.
• Account page PKCS#12 labels — two missing translation keys rendered as raw identifiers on the mTLS certificate export controls.
• Signed CSR history panel — clicking "View certificate" no longer throws a runtime error.
• ACME auto-renewal toggle persistence — the Let's Encrypt auto-renewal switch sent a field the API did not read, so the setting never saved; it now uses renewal_enabled.

Translations

• Completed the ACME "verbose logs" label and description across all locales.

[2.195] - 2026-07-18

Added

• Named protocol URLs per CA (opt-in) — a CA created with namedUrls gets an immutable unique slug derived from its name, used instead of the random id in CDP/AIA URL paths (/cdp/my-issuing-ca.crl); both slug and refid forms always resolve. Easier manual configuration of CRL/OCSP paths in relying products; refid stays the default. Migration 060. (#207)
• Full CRL schedule per CA — CRL validity (nextUpdate window) decoupled from the publish cadence, with next_publish exposed in CRL metadata and the scheduler republishing on the configured interval; configurable CRL signature digest (SHA-256/384/512). New GET|POST /api/v2/crl/<ca_id>/config, CRL & OCSP page UI, migration 059. (#207)
• Readable CRL download filename — CDP downloads suggest {ca-slug}-{refid8}.crl via Content-Disposition; URLs are unchanged (they are embedded in issued certificates). (#207)
• Clock-skew tolerance on issuance — issued certificates backdate notBefore by a fixed 15 minutes so relying parties with slightly slow clocks accept fresh certificates; notAfter stays anchored on the requested validity. (#207)
• Port 80 for protocol endpoints — documented the supported ways to serve CDP/OCSP/AIA on port 80 (systemd CAP_NET_BIND_SERVICE, reverse proxy, Docker port mapping). (#207)

Fixed

• Template digest honored at issuance — certificates issued from the certificate menu were always signed SHA-256 regardless of the template's configured digest; the template link (template_id) is now persisted on the issued row. (#207)
• Template usage counter — the templates list/detail now return a live usage_count computed from issued certificates (the UI previously displayed a field the API never provided). (#207)

Full history: CHANGELOG.md

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Installation

Docker (Recommended)

# From Docker Hub
docker pull neyslim/ultimate-ca-manager:2.197-rc2

# Or from GitHub Container Registry
docker pull ghcr.io/neyslim/ultimate-ca-manager:2.197-rc2

# Run
docker run -d -p 8443:8443 \
  -e SECRET_KEY=$(openssl rand -hex 32) \
  --name ucm neyslim/ultimate-ca-manager:2.197-rc2

Debian/Ubuntu

wget https://github.com/NeySlim/ultimate-ca-manager/releases/download/v2.197-rc2/ucm_2.197.rc2_all.deb
sudo dpkg -i ucm_2.197.rc2_all.deb
sudo apt-get install -f

Fedora/RHEL

wget https://github.com/NeySlim/ultimate-ca-manager/releases/download/v2.197-rc2/ucm-2.197.rc2-1.fc43.noarch.rpm
sudo dnf install ./ucm-2.197.rc2-1.fc43.noarch.rpm

Silent/Automated Install

# Skip firewall prompts for CI/automation
sudo UCM_PORT=8443 UCM_FIREWALL=no dpkg -i ucm_2.197.rc2_all.deb

Default Credentials

• Username: admin
• Password: changeme123

Change the password immediately after first login!

Documentation

• Installation Guide
• API Documentation